Improvement in loom



@tait-eh' @tantes strat @frn JACOB SILBERMANN AND ensrAV UNGER., or NEWYORK, NyY., ASSIGNORS I TO THEMSELVESAND JACOB HEINEMANN', OFSAMEPLACE,`Y

Letras Paare No. 75,062, eared' Mar-ct s, 1868.

IMPROVEMENT IN LOOM.

TO`ALL WHOM IT MAY OONCERN:

Be it knownthat we, JAcoisv SILBERMANN and Gusrnv Unenn, of thefcity andState ofNew York, have invented,lmade, and applied to use, a certain newand useful'lniprovement in WearingfFabrics of Varying' Widths; and we dohereby declare the following to be a full', clear, and exact descriptionof said invention,` reference-'being had to the annexed drawing, makingpart ot' this specification, wherein-#- v Figure 1 is-a rear view of theloom, showing our improvement, part of the fra-'me being removed, and

Figure 2 is a longitudinal section of the same. l

Similar marks of reference denote the sarne'parts.-

The object of our invention is to weave -areontinuous fabric that isvaried in width asv the weaving progreses, and'to eiect the saurewithout the aid of jacquard-mechanism, and without any portion of the.warpthreads beingsubsequently cutout; i

Oar invention `is primarily intended for weaving neck-ties,- in whichthe middle portion is narrow, and, the ends gradually widened, so thatthenarrower part of said neck-tie may pass aroundl the back of theneck,l and the wider ends be tied together, but oursaid improvement maybe applied to weaving any article of varying width to which itmay'be'adapted. i

The nature of our said invention consists in areed, with divergingplates vset so as to be raised or lowered in respect to the fabric, incombination with mechanism that raises and lowers said reedin the lay asthe weaving? progresses, and also 'causes the diverging reed to'occupythe properJ p osition'inrespect to the divergingwarps passing from theheddles to the fabric, so that there will not be undue strain or wearupon said warps.

In the drawing, a represents the loom-frame; Z, the swords of the lay,hung from thejoints 2; c is the v whip-roller; d,'the breast-beam orroller and e the'point at which the'heddles are applied to the warps.These i parts beingiwell known, and of any ordinarycharacter, doirotrequire lfurther description, fis the diver-ging reed, set in a frame,z', that' slides in the vertical frame k, o f the lay, andgg areconnecting-rods from the frame c to cranks z, upon the shaft Z, that issuspended along the under part of the lay-frame: Neanone end of theshaft l is a crank, m, that has a link, n, connected toA a bent lever,2J,l on which is a roller, o, in contact with the cam q. r is a spring,keeping the roller o into contact with the cam q, and s is a connectionfrom the lay to .the lever t2, on which is a pawl,'t, to the? wheel t1,that has a pinion, u, gearing with the wheel v, that is connected to thecam q.

The parts are so timed that the cam g willtmake one completerevolutionin weaving each complete article or pattern, and thev camitself` is to be shaped to produce the desired width of fabric at theproper place. Thus when the roller o rests on the part 12 ofthe cam q,.the link will have swung to the point 4, and allowed the divergingreeds to 'descend-as the laycomes back, thus bringing a. wider portionof the reed down to the line ofthe warps, as that reed comes back towhere the warps are wider apart, by the heddles, and in coming for# wardagain to beat up the lling, the reed will be lifted by n, and the fabricbe narrow. As the cam g turns ,and thevportiou 5 moves the end, 4, ofsaid lever j), in the direction ofthe red arrow, theflink n hangs morenearly vertical, and' does not lift the reed so much, hence the weftwill be beatenup by a wider part ofthe reeds, and be correspondinglywider; thus`the fabric can be woven narrower from a wider portion,'orthe reverse, and the shape of the cam gis such that the inereaseordecrease of width will occur at the proper time; and it will be'apparenti that the cam g might have `two or more projecting points, toproduce. a corre sponding nurnberroi` variations in the widthof thefabric each complete revolution of the cam q.

The fabric woven vmay be of one thickness, or it may be woven double ortubular, the heddles and shuttle being controlled and moved in themanner 'well known for such characters of weaving. A number of divergingreeds may loe-mounted in lone lay,so as to weave several piecessimultaneously.

What we claim, and desire to secure by Letters Patent, is

Il.A A reed, supported in slides in the lay, in combination withmechanism, substantially as described, that gives an end movement tosaid reed, each reciproeation of the lay, in order that the widerportion'of the divcrging reed may como into the warps whorctheystaudwvidcl' apart near the l1edd1cs,f0r the purposes and. as sretforth. l

2. The cam q, lever p, 1h11( n, :md shaft Z, ,01 its equivalent, vincombination withthe lay and divcrgng reed, ttcd t0 slide in the lay, andoperate in the manner and for the purposesset forth.

In Witness whereof, wp have-hereunto set our signatures, this 20th dayof December, 1867. JACOB SILBERMANN,

' GUSTAV UNGER.

Witnesses:

Cms. H. SMITH, GEO. TfPINCKNEY.

